Pichia koratensis sp. nov., a new ascomycetous yeast related to Pichia acaciae isolated from insect frass in Thailand

Takashi Nakase; Sasitorn Jindamorakot; Kozaburo Mikata; Shinya Ninomiya; Hiroko Kawasaki; Savitree Limtong; Wanchern Potacharoen; Morakot Tanticharoen

doi:10.2323/jgam.53.345

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Pichia koratensis sp. nov., a new ascomycetous yeast related to Pichia acaciae isolated from insect frass in Thailand

Takashi Nakase, Sasitorn Jindamorakot, Kozaburo Mikata, Shinya Ninomiya, Hiroko Kawasaki, Savitree Limtong, Wanchern Potacharoen, Morakot Tanticharoen

Author information

Takashi Nakase
Central Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA)
NITE Biological Resource Center (NBRC), Department of Biotechnology, National Institute of Technology and Evaluation
Sasitorn Jindamorakot
Central Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA)
Kozaburo Mikata
NITE Biological Resource Center (NBRC), Department of Biotechnology, National Institute of Technology and Evaluation
Shinya Ninomiya
NITE Biological Resource Center (NBRC), Department of Biotechnology, National Institute of Technology and Evaluation
Hiroko Kawasaki
NITE Biological Resource Center (NBRC), Department of Biotechnology, National Institute of Technology and Evaluation
Savitree Limtong
Department of Microbiology, Faculty of Science, Kasetsart University
Wanchern Potacharoen
Central Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA)
Morakot Tanticharoen
Central Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA)

Keywords: drum-shaped ascospores, new yeast from insect frass, new yeast from Thailand, Pichia koratensis sp. nov.

JOURNAL FREE ACCESS

2007 Volume 53 Issue 6 Pages 345-351

DOI https://doi.org/10.2323/jgam.53.345

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Abstract

Two yeast strains (ST-235 and ST-237) isolated from insect frass collected in northeastern Thailand, were identified as Pichia acaciae and a hitherto undescribed species based on the sequence analysis of the D1/D2 domain of 26S rDNA, ITS regions, and DNA-DNA reassociation experiments. The latter strain, ST-237 (=BCC 11769=NBRC 103638=JCM 12576), was described as Pichia koratensis sp. nov. Pichia koratensis is closely related to Pichia acaciae in the D1/D2 domain sequence of 26S rDNA and phenotypical characteristics but differs by 5 nucleotides (0.9%) from the type strain of P. acaciae and is clearly distinguished by the assimilation and fermentation of sucrose.

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